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08 February 2010, 13:31
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#1 |
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Junior Member
Join Date: Oct 2001
Location: UK Southern End
Posts: 704
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500 & 1200 Power
Hi All
I am back from the darkest reaches of my cupboards etc and have come back with a 1200 & two 500s  I have also found the 1200 power unit and one 500 power unit. The 1200 works and has loads of extra memory and a HD, nice one The two 500s refuse to power up, would a 1200 power unit power a 500, because both the 500s refuse to power up with either power unit. Can anybody help to get the 500s going ? In respect of is there anything that normaly stops a 500 powering up ? Thanks.... |
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08 February 2010, 14:02
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#2 |
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Needs a life
Join Date: Jan 2008
Location: England
Posts: 1,707
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Yes, the power supplies work across both.
"being dead" will stop a 500 powering up. Primary culprits are batteries leaking, capacitors failing... |
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08 February 2010, 16:55
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#3 | |
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Junior Member
Join Date: Oct 2001
Location: UK Southern End
Posts: 704
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Quote:
Thanks, seems the two 500s are knackered  oh well the 1200 works
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09 February 2010, 04:09
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#4 |
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I hate potatos and shirts
Join Date: Oct 2007
Location: Sao Leopoldo / Brazil
Age: 58
Posts: 3,482
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Don't give up: first sack out the trapdoor memory expansion (it is on the base of the A500, under a large plastic cover).
Then turn the A500 Amigas again. |
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09 February 2010, 10:59
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#5 | |
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Junior Member
Join Date: Oct 2001
Location: UK Southern End
Posts: 704
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Quote:
You have made me a happy man today Now they both turn on Can I ask what is causing that, componant breakdown on the Expansions boards I assume. |
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09 February 2010, 11:00
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#6 |
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Needs a life
Join Date: Jan 2008
Location: England
Posts: 1,707
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Battery leak on the expansions would be my guess
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09 February 2010, 13:23
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#7 | |
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Junior Member
Join Date: Oct 2001
Location: UK Southern End
Posts: 704
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Quote:
Only one of the boards has a leaky battery, the other board has no battery.... |
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09 February 2010, 19:23
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#8 |
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I hate potatos and shirts
Join Date: Oct 2007
Location: Sao Leopoldo / Brazil
Age: 58
Posts: 3,482
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As I mentioned on the other thread: don't give up that fast: gently pry out all socketed chips and re-insert them. You'll hear a cracking noise.
Then test the Amigas again, first without the trapdoor RAM. If you see the power led activity but no sign of life for the Amiga (no screen, or a completely black one), that's means the CPU is busted and must be replaced for a working one. More troubleshooting as you test them. |
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09 February 2010, 19:38
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#9 | |
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Junior Member
Join Date: Oct 2001
Location: UK Southern End
Posts: 704
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Quote:
The Amiga's have now been tested and are both working as stated in another post here earliar today. Not to fussed about the boards, going looking for a couple of 1Meg expansion boards for them. Many thanks for help on this.... |
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